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Is Legion Athletics HSA/FSA Eligible? Yes, Here’s How!

8 min read

💡 Quick Answer: Legion Athletics is HSA/FSA eligible because it helps prevent, manage, and reverse a variety of health conditions including protein deficiency, muscle wasting disorders, and post-surgical recovery, and many others. According to IRS Publication 502, all you need is a Letter of Medical Necessity.

Luckily, we make it ridiculously simple. Crates Health is the fastest way to get your personalized and compliant letter for Legion Athletics and thousands of other wellness products, plus we handle your reimbursements directly through our platform with just one click.

What is Legion Athletics

Legion Athletics is the supplement company that basically said “screw proprietary blends” and decided to show you exactly what you’re putting in your body, down to the milligram. Founded by Mike Matthews (the fitness author who’s sold more books than most people have protein shakers), Legion Athletics takes a science-first approach that’s refreshingly honest in an industry full of snake oil. Their flagship Whey+ protein ($40-45/lb) uses grass-fed Irish dairy, their Pulse pre-workout contains clinically effective doses (not pixie dust amounts), and everything is third-party tested by Labdoor for purity and label accuracy. Additionally, many users find that Legion Athletics products can be classified as HSA eligible, providing added financial benefits.

What makes Legion different is their obsessive transparency. Every product page reads like a research paper, complete with peer-reviewed citations for every claim. They use premium ingredients like Creapure creatine from Germany and KSM-66 ashwagandha, not the cheap knockoffs from sketchy suppliers. The results speak for themselves: they’ve sold over 5 million bottles to over 1 million customers in 169 countries, with a money-back guarantee that doesn’t even require returns (seriously, they just refund you). Whether you’re after their naturally sweetened proteins, their Phoenix fat burner, or their Recharge post-workout, you’re getting formulas designed by scientists, not marketing departments. Plus, they’re one of the few companies actually funding new research instead of just cherry-picking old studies that support their products.

Why Legion Athletics Qualifies for HSA/FSA

According to IRS regulations, nutritional supplements can qualify as eligible medical expenses with a Letter of Medical Necessity under specific circumstances outlined in Publication 502.

IRS Publication 502 states that medical expenses are “the costs of diagnosis, cure, mitigation, treatment, or prevention of disease, and for the purpose of affecting any part or function of the body,” but “must be primarily to alleviate or prevent a physical or mental condition or illness.”

This means Legion Athletics supplements can qualify for HSA/FSA reimbursement for prevention or treatment of:

  • Protein deficiency and muscle wasting disorders
  • Sarcopenia (age-related muscle loss)
  • Malnutrition and absorption disorders
  • Post-surgical recovery and wound healing
  • Immune system deficiencies
  • Metabolic disorders
  • Chronic fatigue syndrome
  • Exercise-induced muscle damage

The key requirement is that your healthcare provider must note the specific supplements as medically necessary for managing your health condition, not just for bodybuilding or general fitness. This documentation comes in the form of a Letter of Medical Necessity (LMN).

How to Assess Your Eligibility

Traditional Route: Schedule an appointment with your primary care physician, discuss your nutritional needs and health conditions, and request a Letter of Medical Necessity if supplementation is recommended as part of your treatment plan. This typically requires an office visit, potential wait times, and can cost $50-100+ depending on your insurance.

Faster, Smarter Route: Use Crates Health to get your Letter of Medical Necessity online in just a few minutes. Our platform connects you with licensed healthcare providers who can evaluate your conditions remotely and issue the appropriate documentation if you qualify. No office visits, no waiting weeks for appointments, and no surprise medical bills.

Frequently Asked Questions

Do other protein powders and sports supplements qualify for HSA/FSA? 

Absolutely! With the right medical documentation, you can potentially use HSA/FSA funds for protein supplements, amino acids, creatine, vitamins, and other nutritional products, as long as they’re recommended for treating specific medical conditions.

How does reimbursement work? 

Some retailers accept HSA/FSA cards (most don’t though). When they don’t, you need to use your personal card and then reimburse yourself. This means finding and storing receipts and then uploading them and your LMN to your HSA/FSA admin portal. With Crates, we make this process simple: upload your receipt and get one-click reimbursements all from our platform.

What is a Letter of Medical Necessity? 

A Letter of Medical Necessity (LMN) is a document from a licensed healthcare provider that explains why a specific expense like your Legion Athletics HSA eligible supplements is medically necessary for treating a diagnosed condition. It’s the official paperwork that proves your supplementation isn’t just for muscle gains. Each LMN typically remains valid for 12 months from the date of issue.

Will my claim get denied? 

Every HSA/FSA admin is unique and may initially deny some claims. Usually, it is related to receipt format (must be itemized), LMN format, or other supporting documentation. With Crates, we will support you through this process and make sure you get your money back.

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Anchor Ebanks

Anchor Ebanks

Anchor Ebanks is an HSA/FSA optimization expert featured in Yahoo Finance, The American Journal of Healthcare Strategy, Admissions Gateway, and Poets & Quants. He attended Harvard Business School and was an AI research fellow at the Berkman Klein Center for Internet & Society focused on healthcare access. Prior to wellness benefits, he spent nearly a decade at Google, YouTube, and Deloitte. Connect on LinkedIn, Twitter, or at anchor@crateshealth.com.

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